Carpentry 2: Door installation

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  1. When are the doors usually installed in residential construction?
    Conclusion of the framing stage
  2. How much clearance should be around the door in the opening for insulation?
  3. How does the size of the overhead door compare to the size of the overhead door opening?
    Equal or slightly less
  4. How far should the backing for the overhead door track and spring bracket extend above the top of the opening?
    • side: 300mm (12") above the top of the opening
    • centre: extend upwards from the door frame at least 300mm (12")
  5. What can you do at the time of installation to stop moisture and air infiltration under an exterior door?
    Apply 2 beads of caulking
  6. When fastening the doorjamb to the framing, where should you install the screws so they are hidden?
    Fasten using long screws with the heads hidden behind the weather stripping.
  7. What can you do to avoid damaging an expensive entry door during construction?
    Temporarily replace it with an inexpensive door.
  8. When you are finished installing a latchset, which side of the door should the screws for the handle be on?
    Secure side
  9. If you use expanding foam to insulate around doors, what type should you use?
    Window and door type
  10. What would happen if the fasteners used to attach the wall finish to a pocket door frame were too long?
    The door wouldn't slide into pocket
  11. What are some advantages of using 'open stock' door and jamb materials?
    Reduce cost and can mix and match door styles.
  12. Why is it important that the screws be centred in the holes when installing hinges?
    Off-centre screws can push the hinge out of place
  13. What should be done to allow for hardware floor when installing interior doorjambs?
    If the floor covering is not yet installed and will be thick carpet or hardwood floor, place a piece of hardwood floor as a shim under the hinge side jamb to maintain clearance under the door when the floor is installed.
  14. Explain why doorstops are cut 6mm (1/4") short of the floor.
    To allow easy cleaning along the floor line next to the jamb.
  15. What should you check before choosing which side of the door to drill for the latchset?
    Some door have hinge side stamped on the top or bottom of the door; if there is no stamp, the door can be drilled on either edge for the latch.
  16. What size hole should be drilled for a standard latch bolt? For the cylinder?
    • Drill the latch bolt first, using a 25 mm (1") spade or Forstner bit.
    • Drill the cylinder hole using a 54 mm (2 1/8") hole saw or multi-spur bit.
  17. Why are the hinges installed on the jamb 3 mm (1/8") lower than on the door?
    To provide clearance at the top of the door
  18. What is the reason for using a half jamb around bifold door openings?
    So that the finishing and appearance of the door is similar to that of a swing door.
  19. What hardware would you install to keep the bottom panels aligned in the middle of a pair of bifold doors?
    Aligning clips to hold the bottom of the 2 doors aligned. The clips are installed on the back of the doors, 150-300 mm (6-12") above the bottom of the door.
  20. Why should you consider using screws to attach the top half (split) jamb of a pocket door?
    Makes them easier to be removed if door has to be adjusted or replaced
  21. What is the reason for installing the concave side of a slightly bowed door toward the stops on the jamb?
    If forces the door straight when it is closed which can often straighten the door
  22. How could you compensate for a door opening with the bottoms out of alignment when you install the jamb?
    Both side jambs can be offset slightly, in opposite directions, at the bottom of the opening to bring the bottoms of the jamb closer in line with each other.
  23. What can you do to adjust a door slightly from side to side (laterally)?
    By shimming behind the hinges
  24. Why is casing installed with a reveal?
    To prevent notching.
  25. What is the purpose of gluing the mitres as they are assembled?
    Keeps it tight and locks it in place so it resists opening due to material shrinkage and building movement.
  26. What is an alternate method of trimming the door opening where it meets the floor?
    Using a plinth block against the floor, with the casing cut square against the top of this block.
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Carpentry 2: Door installation
Carpentry 2: Door installation
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